code: def __getitem__(self, item):
      return (
          torch.LongTensor(self.bert_inputs[item]),
          torch.LongTensor(self.grid_labels[item]),
          torch.LongTensor(self.grid_mask2d[item]),
          torch.LongTensor(self.pieces2word[item]),
          torch.LongTensor(self.dist_inputs[item]),
          self.sent_length[item],
          self.entity_text[item],
      )
  
imports: import json
  import torch
  from torch.utils.data import Dataset
  from torch.nn.utils.rnn import pad_sequence
  import numpy
  import prettytable
  from tqdm import tqdm
  from transformers import AutoTokenizer
  import os
  from deepke.name_entity_re.standard.tools import *
  import requests
  from typing import List
  from .utils import convert_index_to_text
label_desc: Use image node_id 2 for calling the RelationDataset obj's underlying member method code with example usage: obj.__getitem__(item) and returns: torch,  torch,  torch,  torch,  torch,  self,  self